Speaker



FIG. 1 is a rear perspective view of a speaker.

FIG. 2 is a front perspective view of the speaker of FIG. 1.

FIG. 3 is a front view of the speaker of FIG. 1.

FIG. 4 is a rear view of the speaker of FIG. 1.

FIG. 5 is a right side view of the speaker of FIG. 1.

FIG. 6 is a left side view of the speaker of FIG. 1.

FIG. 7 is a top view of the speaker of FIG. 1; and,

FIG. 8 is a bottom view of the speaker of FIG. 1.

The broken lines in the drawings illustrate portions of the speaker which form no part of the claimed design. 

CLAIM The ornamental design for a speaker, as shown and described. 